>the purpose isn't just infidelity as the article would have you believe. The article states "The clients are often people who live at home with their parents

>the purpose isn't just infidelity as the article would have you believe. The article states "The clients are often people who live at home with their parents and just need some privacy." Still, they don't clarify this any further so your explanation is useful. As it happens, a similar situation to what you describe in Korea is also common in Japan.